Attachment for rod-rolling mills



(No Model.)

A. J. DAY.

ATTACHMENT FUR ROD ROLLINGKMILLS. No. 336,703.

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BY Cm/Hw i639 ATTORNEYS.

UNITED 4Srrifrns PArnNr Ormea.

ANDREW J.' DAY, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO HIMSELF AND WILLIAM F. THOMPSON, OF CLEVELAND, OHIO.

ATTACHMENT FOR ROD-ROLLING MILLS.

SPECIFIGATION forming part of Letters Patent No. 336,703. dated February 23, 1886. Application filed August 20, 1585. Serial No. 175,645. (No model.)

To all whom t may concern:

Be it known that I, ANDREW J. DAY, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and Improved Rod-Rolling Attachment, of which the following is a full, clear, and exact description.

My invention relates to that class of machines used to roll rods of small diameter, which it is advantageous for the manufacturer to produce in great lengths, but which have heretofore given considerable trouble to the mauufactu rer by reason of the liability of the rod to kink between the two sets of rolls employed to do the rolling. To avoid this kinking, which of course would ruin the rod, it has been necessary to employ skilled labor to handle theloop between the two sets of rolls, and this labor not only involved the manufacturer in an additional expense, but was not by any means a sure way ot' meeting the difficulty sought to be overcome, as upon the slightest inattention on the part ot' the attendant the rod was liable to kink.

rPhe object of my invention is to provide an attachment for the ordinary form of rolls, whereby the rod, having once been delivered to the bite of the second pair of rolls, will take care of itself uutil the operation of rolling has been completed.

The invention consists of certain novel constructions and combinations of parts, as will be hereinafter described, and specically pointed out in the claims.

Reference is to be had to the accompanying` drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a plan View of aset of rolls with my attachment arranged to be used in connection therewith, a portion of the apparatus being shown in section to disclose the construe tion of the parts. Fig. 2 is a side view of the same, partly in section, taken on line w x, Fig. l. Fig. 3 is a sectional view on line 1/ y, Fig. l; and Fig. 4 is a sectional view on line s', Fig. l.

A A represent a set of rolls of ordinary con struction, this set being the set between which the rod is rst passed. After the rod has passed between the rolls A A its leading end is carried to the rolls shown at B in Fig. 1, be-

tween which rolls it passes in a direction opposite that in which it passed between the rolls A A. Directly in front of the rolls A A, I arrange a tube or pipe, C, which is formed with a flaring bell-shaped mouth, a., and with a longitudinal slot, b, throughout its entire length on the side contiguous to the rolls B. The bottom of the tube O and that portion of it which constitutes what might be called the lower edge, e, ofthe slot b are corrugated, as is also the iiange c. (See Fig. 4.) An open trough, D, the bottom of which is corrugated, acts as a continuation of the tube C, and the sided of this trough D is tapered downward from the frontf, where the trough meets the tube C, to the point f where the trough joins the third element of my apparatus.

The idea of the corrugations above described is to reduce the friction between the rod and the tubes or troughs. This third element consists of a pit or deep hole, E, above which there is arranged a cover, F, formed with a longitudinal opening, g, closed at will by a trap, h. Supported by the cover F, and running parallel with the opening g, being acontinuation ofthe side d of the trough D, is a ridge, 7s, and upon the opposite side of the opening g is an incline, Z, the higherend ot' which is rounded, as shown at t' in Fig. 1.

The operation of the apparatus above described is as follows: The rod s is ted in between the rolls A A, and its leading end is at once caught by a boy who delivers it to the bite of the rolls l5, thus forming a loop, s', between the rolls A A and B, one leg of which rests within the tube O. Now, as is well understood in the art, the rods will advance more rapidly from between the rolls A A than it will be taken up by the rolls B; consequently the loop s is constantly increasing in size, and as the loop increases in size its leg s`l travels down through the tube O and trough D until it reaches the incline Z, between which and the ridge 7i: the leg s? must pass, and as the opening g is in the line of travel the rod must pass directly over the opening, being, however, at this time prevented from falling into the pit by the trap 71,. After the loop has dropped down behind the rounded end t' of the incline l the trap 71. is opened, and any increase inthe length of the loop will be taken up by that IOO portion of the loop which dropped through the 1 opening' g. At this tinie the rolls A A deliver through the tube C und trough D to the pit E, and the rolls B receive the rod from the farther side z' ofthe incline I, the pit E being made deep enough to take up all increase in the length ofthe iocp.

I am aware that tubes have been employed for guiding the rod from onepuir of rolls to the other, and I do not elztini such tubes or troughs, the object of my -invention being to govern und control the movement of the loop after its end has been delivered to the bite ot the second pair of rolls.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patentl. The combination, With the rolls A und B,

ANDREW' J. DAY.

a. slot, b,

'itnesses:

JAMES C. SCOTT, Trios. D. BELL. 

